How can I improve add entry tab?

I'm making a UX/UI for Telenor software that we are developing as summer project. How to do the navigation/controls for this Software style:enter image description here

I'm stuck on how best to do the Add Entry for this tab. The Problem is: We are using scroll pane. Our professor warn us for scroll pane as user will distract so how we should redesign this Add Entry? the below picture is also part of Add Entry

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